<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>页面未找到 - 404错误</title>
    <style>
        body {
            font-family: 'Arial', sans-serif;
            background-color: #f8f9fa;
            color: #343a40;
            text-align: center;
            padding: 50px 20px;
            line-height: 1.6;
        }
        .container {
            max-width: 600px;
            margin: 0 auto;
        }
        h1 {
            font-size: 5rem;
            margin: 0;
            color: #6c757d;
        }
        h2 {
            font-size: 1.5rem;
            margin: 20px 0;
        }
        p {
            margin-bottom: 30px;
        }
        a {
            color: #007bff;
            text-decoration: none;
            font-weight: bold;
        }
        a:hover {
            text-decoration: underline;
        }
        .emoji {
            font-size: 3rem;
            margin: 20px 0;
        }
    </style>
</head>
<body>
    <div class="container">
        <div class="emoji">😕</div>
        <h1>404</h1>
        <h2>页面未找到</h2>
        <p>抱歉，您访问的页面不存在或已被移除。</p>
        <p>您可以返回<a href="/">首页</a>或检查您输入的URL是否正确。</p>
    </div>
</body>
</html>